var legenddistanceAirline = {};
var legenddistanceAlliance = {};

legenddistanceAlliance['OneWorld'] = 277406;
legenddistanceAlliance['Star Alliance'] = 24633;
legenddistanceAlliance['SkyTeam'] = 17038;
legenddistanceAlliance['No Alliance'] = 41489;
legenddistanceAirline['BWIA West Indies'] = 8390;
legenddistanceAirline['EasyJet'] = 3798;
legenddistanceAirline['Air France'] = 1096;
legenddistanceAirline['British Airways'] = 256428;
legenddistanceAirline['Excel Airways'] = 2506;
legenddistanceAirline['BMI British Midland'] = 600;
legenddistanceAirline['Lufthansa'] = 12041;
legenddistanceAirline['EgyptAir'] = 266;
legenddistanceAirline['Air New Zealand'] = 1602;
legenddistanceAirline['Qantas'] = 1342;
legenddistanceAirline['Iberia'] = 774;
legenddistanceAirline['American Airlines'] = 15980;
legenddistanceAirline['Regional Air'] = 168;
legenddistanceAirline['Blue Sky Aviation'] = 377;
legenddistanceAirline['First Choice'] = 3936;
legenddistanceAirline['Air Tahiti'] = 322;
legenddistanceAirline['Air Tahiti Nui'] = 11718;
legenddistanceAirline['LATAM Brasil'] = 2882;
legenddistanceAirline['Unknown'] = 112;
legenddistanceAirline['Precision Air'] = 744;
legenddistanceAirline['Tropical Air'] = 20;
legenddistanceAirline['Zanair'] = 20;
legenddistanceAirline['Delta'] = 15942;
legenddistanceAirline['Air Canada'] = 707;
legenddistanceAirline['Swiss'] = 6444;
legenddistanceAirline['Turkish Airlines'] = 1835;
legenddistanceAirline['United Airlines'] = 1138;
legenddistanceAirline['Spicejet'] = 707;
legenddistanceAirline['Kingfisher'] = 8671;
legenddistanceAirline['OneWorld'] = 277406;
legenddistanceAirline['Star Alliance'] = 24633;
legenddistanceAirline['SkyTeam'] = 17038;
legenddistanceAirline['No Alliance'] = 41489;


$(function () {
    var chart;
    $(document).ready(function() {

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 76.9,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (277406)',
						categories: ['British Airways','American Airlines','Others'],
						data: [71.1,4.4,1.4],
						color: colors[0]
					}
				} ,{
					y: 6.8,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (24633)',
						categories: ['Lufthansa','Swiss','Others'],
						data: [3.3,1.8,1.7],
						color: colors[1]
					}
				} ,{
					y: 4.7,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (17038)',
						categories: ['Delta','Others'],
						data: [4.4,0.3],
						color: colors[2]
					}
				} ,{
					y: 11.5,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (41489)',
						categories: ['BWIA West Indies','EasyJet','First Choice','Air Tahiti Nui','Kingfisher','Others'],
						data: [2.3,1.1,1.1,3.2,2.4,1.3],
						color: colors[3]
					}
				} 

		];


        // Build the data arrays
        var allianceData = [];
        var carrierData = [];
        for (var i = 0; i < data.length; i++) {

            // add browser data
            allianceData.push({
                name: categories[i],
                y: data[i].y,
                color: data[i].color
            });

            // add version data
            for (var j = 0; j < data[i].drilldown.data.length; j++) {
                var brightness = 0.2 - (j / data[i].drilldown.data.length) / 5 ;
                carrierData.push({
                    name: data[i].drilldown.categories[j],
                    y: data[i].drilldown.data[j],
                    color: Highcharts.Color(data[i].color).brighten(brightness).get()
                });
            }
        }

        // Create the chart
        chart = new Highcharts.Chart({
            chart: {
                renderTo: 'airline_distance',
                type: 'pie'
            },
            title: {
                text: ''
            },
            yAxis: {
                title: {
                    text: ''
                }
            },
            plotOptions: {
                pie: {
                    allowPointSelect: true,
                    cursor: 'pointer',
                    dataLabels: {
                        enabled: true
                    },
                    showInLegend: false
                }
            },
            tooltip: {
        	    valueSuffix: '%'
            },
            series: [{
                name: 'proportion',
                data: allianceData,
                size: '80%',
                dataLabels: {
                    formatter: function() {
                        return this.y > 5 ? this.point.name : null;
                    },
                    color: 'white',
                    distance: -75
                }
            }, {
                name: 'proportion',
                data: carrierData,
                innerSize: '80%',
                dataLabels: {
                    formatter: function() {
                        // display only if larger than 1
                        return this.y > 1 ? '<b>'+ this.point.name +':</b> '+ this.y +
                        	'%' + getCountdistance(this.point.name) : null;
                    }
                }
            }]
        });
    });

});

function getCountdistance(airline)
{
	if(legenddistanceAirline[airline])
	{
		return " (" + parseInt(legenddistanceAirline[airline]).toLocaleString() + ")";
	}
	else
	{
		return "";
	}
}